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Troubleshoot Azure virtual machine boot errors

  • Article

Applies to: ✔️ Windows VMs

This article helps you troubleshoot common boot errors that you may encounter when you start an Azure Windows virtual machine (VM).

Troubleshooting steps for VM boot errors

Note

We recommend that you follow these troubleshooting sections in order. First, identify the problem, and then review the provided remediation information. If you still can't solve the problem after following the guidance in this article, proceed to open a support ticket.

If you can't connect to your Windows VM and are unsure of the cause, perform the following troubleshooting steps:

  1. Verify that your VM is started.
  2. If your VM can't start and you recently applied Windows updates, see Troubleshoot VM not booting after Windows update.
  3. Understand how to use boot diagnostics to troubleshoot virtual machines in Azure.

If your VM isn't on the Ctrl+Alt+Del security screen, it may be experiencing a boot error. To troubleshoot this issue, follow these steps:

  1. Try restarting the VM.
  2. Review the following recommended articles for troubleshooting guidance. There are other articles in the table of contents on the left side of this article that may also be helpful.

Troubleshooting information for specific boot errors

For other boot errors you may encounter, see the "Specific boot errors – Windows" section in the table of contents on the left side of this page. The most common issues are:

Other resources

Contact us for help

If you have questions or need help, create a support request, or ask Azure community support. You can also submit product feedback to Azure feedback community.